1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ivan
2 years ago
11

12) A radio transmission tower is 170 feet tall. How long should a guy wire be if it is to be attached 15 feet from the top and

is to make an angle of 30° with the ground? Give your answer to the nearest tenth of a foot.
13) A building 230 feet tall casts a 100 foot long shadow. If a person looks down from the top of the building, what is the measure of the angle between the end of the shadow and the vertical side of the building (to the nearest degree)? (Assume the person's eyes are level with the top of the building.)
Mathematics
1 answer:
ser-zykov [4K]2 years ago
6 0

The length of guy wire needed to make an angle of 30° with the ground is 310 feet. The angle between the end of the shadow and the vertical side of the building is 23°

<h3>What is trigonometric ratio?</h3>

Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.

a) Let l represent the length of the guy wire.

sin(30) = (170 - 15) / l

l = 310 feet

b) Let Ф represent the angle, hence:

tanФ = 100/230

Ф = 23°

The length of guy wire needed to make an angle of 30° with the ground is 310 feet. The angle between the end of the shadow and the vertical side of the building is 23°

Find out more on trigonometric ratio at: brainly.com/question/24349828

You might be interested in
Luke correctly graphs the fundamental period of the function f(x)=sinx.
aleksandrvk [35]

Answer:

Period is 2pi

Y- intercept is (0,0)

For points, use the last option

6 0
3 years ago
Read 2 more answers
For any n, 33 divides (n^101-n). prove this is true.
Kaylis [27]
No because 101 is ture
8 0
3 years ago
What is the scientific notation for earth​
slega [8]

Earth: radius = 6378 kilometer, diameter = 12756 kilometers.

5 0
3 years ago
Read 2 more answers
One sixth of a right angle
QveST [7]
The answer will be fifteen degrees because one sixth is 1/6 and a right angle is 90 degrees so it will be 1/6 * 90/6 which will be 90 divided by 6 and equal fifteen .
7 0
3 years ago
during the weekend Michael took 6 and 3/7 hours to do his homework, 4.37 hours to clean his room and then walked his dog for 2/3
alukav5142 [94]

We conclude that Michael worked for a total of 11.46 hours in the weekend.

<h3>How much time did he work on the weekend?</h3>

We know that during the weekend, the times that he used for each task are:

  • (6 + 3/7) hours to do his homework.
  • 4.37 hours to clean his room.
  • 2/3 hours to walk the dog

The total time is given by the sum between the above numbers, where the difficulty is the fact that the 3 numbers are in different notations (decimal, fraction, and mixed).

The sum is:

S = (6 + 3/7) h + 4.37 h + 2/3 h

The easier way to do this, is to write the 3 numbers in decimal form:

2/3 = 0.66

6 + 3/7 = 6 + 0.43 = 6.43

Then the total time is:

S = 6.43 h + 4.37h + 0.66h = 11.46 h

We conclude that Michael worked for a total of 11.46 hours in the weekend.

If you want to learn more about sums:

brainly.com/question/17695139

#SPJ1

3 0
2 years ago
Other questions:
  • What's 93 divided by 4 and need work to prove that I did it
    8·1 answer
  • Va rog sa ma ajutați: 420/180x54/180
    13·2 answers
  • The cable company takes an SRS of 250 of the approximately 15,000 households who subscribe to them. They found that 75 percent o
    12·1 answer
  • Round 854 to the nearest hundredth
    5·1 answer
  • Solve the following system by the substitution method<br><br> 2x+y=4<br> y+2x
    14·1 answer
  • Part I - To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nico
    14·1 answer
  • To solve y and x, I am adding a picture
    14·1 answer
  • if there are two containers of sugar solution, the first is 4% concentration and second is 8% concentration. how much of each sh
    5·1 answer
  • Can someone explain how you do this and not only give me a answer?
    15·2 answers
  • The cost of packing a box of chocolates is given by 1 4 x2, where x is the number of chocolates (a box can never have fewer than
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!